We are witnessing the death of Keynesian economics. RIP.
Discussion
I don't think that's true. It's possible to simultaneously be pro-Bitcoin and also believe in Keynes's approach for the pre-Bitcoin world
There will be multiple fiat currencies in use, alongside Bitcoin, for multiple decades to come and it's not clear how best to manage that. It'll be a new world, and I don't think we can blindly accept or dismiss any existing approach. Austrian economics might not be the perfect approach, even though some bitcoiners love it
Rogoff wasn't particularly Keynesian. In fact, his approach was anti-Keynesian during the crisis after 2008